Transportation of paper



. 1L. HAMMOND TRANSPORTATION OF PAPER Filed Aug. 51? 1925.

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3 TRANSPORTATION OT PAPER.

Application filed Augustin, 1925.

This invention relates to the transportationof sheets of paper and particularly tothe movement in relatively large cpiantities of; highly polished sheets of paper.

Une of the most dillicult problems confronting a printer, or other user of sheets of paper in, large quantities, the moven'lent of his paper, particularly the highly polished sheets of paper, to different parts of his establishment, and to the bindery. in a large majority of cases the printer is not equipped to do his own binding and it is necessary for him to transport a considerable volume ofsheets of paper from his printing establishment to an outside bindery. This bindery is often located a considerable distance from his printing establishment.

In the transportation of this paper it is most convenient to pile the sheets of paper in relatively large piles or stacks upon a con veying platform or truck. These sheets, especially when highly polished, are caused .to slide or turn one upon the other by the slightest external force during transit, with the result that they are broken or damaged in some manner. In order to reduce such occurrenees to a minimum, itis common prac tice to tie the stacks of paper to the truck or other vehicle upon which they are loaded by means of rope orby belts or the like. This requires considerable time, and is expensive because the rope cannot be reused. This method of holdinfr the paper is not satisfactory because one is not able to pull the rope or belt over the paper with sufficient force to prevent sliding and twisting and the resulting diiliculties encountered during transportation in which the paper often is damaged.

In many instances sheets of paper are delivered in wooden boxes whichthe recipient must uncrate to remove the paper. This is objectionable becauseall the paper is seldom removed at one time, and what remains in the box is liable to become damaged. i

The invention has for an object the mo vision of an improvement in transportingpaper and particularly the provision of means facilitating the transportation of paper.

lit is a further object of the invention to provide means for holding sheets of paper in Serial No. 53,467. Y

stacks in close contact with such rigiditv that highly polished sheets of paper are positively held from sliding); and turning, one upon the other, during transportation. I

As a result of extended investigation, T have found that even highly polished sheets of paper may-be held in a satisfactory manner for transportation if the sheets are pressed into close contact with sullicient pressure. In accordance with the invention, 1 provide means for pre Bing a Hat, rigid, movable u1emher with considerable pressure against a sub stantial area of the top flat surface of a stack of highly polished sheets of paper held upon a suitable platforn'i or truck. Prefen ably, one or more racks are provided for mounting upright upon opposite edges of the platform in close proximity with the paper. The movable member is adapted to move to positions parallel to the, flat surfaces of. the sheets of paper so as to engage the paper, and is adapted for operative association with a tool for obtaining a mechanical. advantage for pressing it against the paper with considerable pressure. A pair of loopshaped rods are secured to the ends of the movable member. and in operative association with racks so that one may engage a tooth of the raclc to hold the paper under pressure while permitting the other to hang free thereof. This device includes a relativelv long rod of rigid construction adapted to pivotally contact at one end with a tooth of the rack and engage the freely hanging loopshapcd rod near that end and thereby provide a lever arm. forpres sin l the flat rigid movable member upon the paper with a coi'isiderablc pressure. a

The invention will be more clearly understood froin the following description in conjunction with the accompanying drawings; in which, i 1

Fig. 1 a front elevational viewof a dc vice embodying the invention;

Fig. 2 is a plan view of the same; and

Fig. 3 is a partial side elevational view of the same.

In the accompanying drawing, T have illustrated one suitable form of device provided in accordance with the invention for holding sheets of paper against a carrying platform with sufficient pressure to hold the sheets from .T-shaped iron.

turning or moving one upon the other. This device comprises a pair of racks 5 having a lower portion flattened and bent to form a tongue 6 adapted to fit into a bracket 7 secured on opposite edges of a platform 8 for mounting the racks upright with the teeth 9 outwardly disposed. A flat, movable member of rigid construction, such as a heavy wooden plank 10, is adapted to move between the racks 5 to positions parallel with the platform 8 so as to engage the flat surface of a stack of sheets of paper 11 thereon. For this purpose, in order to reduce contact between the ends ofthe plank and the racks 5, I provide a pair of rollers IQapprOpriately secured to each end of a reinforcing frame 13 for the plank 10 so as to engage the back of the racks [5. The racks may be constructed of'any suitably strong material, such as a A pair of loop-shaped rods 14 and 15 are pivotally secured in the reinforcing frame 18 at each end thereof so that the'rod 15 may engage a-tooth of the rack while permitting the rod 14 to hang free thereof. Each side of the plank 10 may be cut away near its ends to provide clearance for movement of the rods 14 and 15. A relatively long, rigid rod16 is constructed and ar ranged so that one end may pivotally contact with a tooth 9 of a rack andengage near that end the freely hanging rod 14 to provide a lever arm for forcing the movable member against the flat surface of a stack of sheets of paper upon the platform 8 with considerable pressure. Preferably, the rod 16 has a split end portion'17 to prevent side movement when in contact with a tooth, and is provided with a notch 18 for engaging the rod 14.

In'order to'hold highly polished sheets of paper with sufficient pressure to preventturning and sliding one upon the other during transportation, place the notch 18 of the tool or rod 16 in engagement with the loopshaped rod 14, andthe end 17 of the rod 16 in engagement with an appropriate tooth 9 of the rack. The outer end of the rod 16 is pressed downwardly to force the rod 14 and the movable member downwardly to press I pressure.

against the paper with considerable pressure. At the same time, the loop-shaped rod 15, which is resting by gravity against the teeth 29 of the rackpfalls into engagement with a tooth of the rack'as' the pressure has been relieved from the'outer end of the rod 14, thereby holding the movable member. ith the rod'15 engaging a tooth 9 of the rack 5, for example, at the right hand edge of the platform 8 as shown in the drawings, I bring the tool 16 into engagement with the rod 14 and rack 5 at the left hand end of the platform to press that end of the'movable member against the paper and hold the same under the desired Ifit is desired to remove the movable'member, the rod or tool 16 is brought into engagement with either of the racks and cooperating rods 14 and then, pressed downwardly at its outer end to release the rods 15, which may be held outwardly to prevent re engagen'ient with the teeth 9.

Thus, in accordance with the invention, I have provided an improvement in the transportation of sheets of paper whereby the sheets are held in close contact with such pressure as to prevent sliding or turning of one sheet upon the other. I have found in practice that highly polished sheets of paper may be held effectively during the most hazardous conditions of transportation. Moreover, the invention makes possible an enormous saving in labor and material costs for transportation because there is no waste of materials and the stack of sheets of paper may be placed in close contact under a considerable pressure in a very short time. Furthermore, the invention is advantageous for use in the storage of large quantities of paper in as much as it provides easy access to the paper at all times.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A device for facilitating the transportation of sheet paper comprising a platform upon which sheets of paper may be superimposed, a rigid upright member constructed and arranged for detach ably mounting at opposite sides of the platform, a movable flat cross member arranged to engage a substantial area of the top sheet of a pile of paper upon the platform and extend between the upright members, a hand operated mechanism providing a large mechanical advantage to cooperate with the upright member and cross member to force the latter against the paper to prevent relative movement of the sheets during transportation, and means for holding the cross member rigidly in such position.

2. A device for facilitating the transportation of sheets of paper comprising a platform having a substantially smooth unobstructed top surface upon which sheets of paper may be superimposed, a rigid upright member constructed and arranged for detachably mount ing at opposite sides of the platform, means below the top surface of the platform for holding said member in an upright position, a movable flat cross member arranged to engage a substantial area of the top sheet of a pile of paper upon the platform and extend between the uprlght members, a hand operated mecha- IllSln arranged to cooperate with the upright members and cross member to force the latter against the paper to prevent relative movement of the sheets during transportation, and means for holding the cross member rigidly in such position.

'3. A device for facilitating the transportation of sheets of paper comprising a platform having a substantially smooth unobstructed top surface upon which sheets of paper may 1.,eemee5 he superimposed, a rack tletaehahly mounted in an upright position at opposite sides oil. the platform. an (1 arranged With the bottom surface of its teeth extending in a horizontal direction, a movable cross member arranged to en a substantial area of the top sheet of a p1le of paper on the plattorn'l, a lever pivotally connected with said cross member and arranged to engage a teeth of the rack so that the cross member may be brought against the paper to prevent relative movement of the sheets, and. means for holding the cross member rigidly in. sueh position.

BERT /VOUD L. HAMMOND. 

